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Justo Becerra

@justobecerra

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Full Stack Developer at Forward Thinking Systems who built a shipment-tracking app from warehouse to depot.

Argentina

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At Forward Thinking Systems, I built a shareable web app for tracking shipments from the warehouse to the depot. I designed the server and database interactions so the UI receives correct, up-to-date data.

At Vinculum, I designed core features for client web applications that improved user engagement by 15%. I worked directly with clients to refine requirements and optimized Node.js APIs and database structures.

At DevLabs, I developed features for mobile and web applications that contributed to a 10% increase in user retention. I also debugged mobile API interactions, reducing critical error rates by 20%.

Experience

Work history, roles, and key accomplishments

Full Stack Developer

Forward Thinking Systems

Jun 2025 - Oct 2026 (1 year 4 months)

Built a shareable web app for tracking shipments and designed server and database interactions. Maintained a large legacy application and used Claude Code for implementation, refactoring, and debugging.

Next.js React Vite TypeScript Java Spring Boot Oracle DB Claude Code

Full Stack Web Developer

Vinculum

Mar 2024 - Jun 2025 (1 year 3 months)

Designed and implemented core features for client web applications, improving user engagement by 15%. Worked directly with clients to gather requirements and architected database structures and Node.js APIs.

Astro React TypeScript Zustand React Query NodeJS

Frontend & React Native Developer

DevLabs

Jun 2022 - Sep 2023 (1 year 3 months)

Developed new features for mobile and web applications, leading to a 10% increase in user retention. Debugged complex interactions with mobile APIs, reducing critical error rates by 20%.

React React Native TypeScript Tailwind React Query Redux